Bushing.



RUSHING. APPLIOATIN FILED FEB. 8, 1904.

z slums-SHEET 41.

H. J. GILBERT.

RUSHING.v APPLICATION 4HLED rma; e. 1964.

Patented Decygg, 1908.

1H: Noflms rersns co., wAsmNsIoN. D. c.

HENRY J. GILBERT, OF SAGINAW, MICHIGAN.

BUSHING.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed February 8, 1904. Serial No. 192,700l

To all whom it may concern: Y

Be it known that I, HENRY J. GILBERT, a citizen of the United States, residing at Saginaw, Saginaw county, Michigan, have invented certain new and useful Improvements in Bushings, of which the following is a description. l

My invention pertains to bushings which are used for various purposes particularly, but not necessarily, in connection with pulleys and the like where interchangeable bushings are required to lit and clamp a pulley of any given shaft bore or opening upon a shaft of any diameter less than that of such shaft bore.

The object of my invention is to provide a simple and efficient but durable and come paratively inexpensive bushing formed of sheet metal, the features of advantage and utility of which will -be made apparent from the description hereinafter given.

In the drawings, Figure 1 is a perspective view of one of the halves of my new bushing in which the rings are retained or held at both inner and outer edges; Fig. 2 a central longitudinal section thereof Fig. 3 an end elevation of such half bushing; Fig..4 a detail view showing the interlocking between the sleeve and rings; Fig. 5 an elevation of the end of a modified form of bushing, illustrating how certain features may be dis ensed with when interlocking of the inner edges of the rings is employed; Fig. 6 a longitudinal sectional view of a modified form of bushing in which the rings are held at their outerredge, Fig. 7 an end elevation of such modified form, Fig. 8 a detail view of parts of Figs. 6

and 7 Fig. 9 an elevation, partly in section, of a modified form of bushing in which the rings are retained or held at their inner ed es; Fig. 10 a sectional elevation on the ine 10--10 of Fig. 9; Fig. 11 an elevation of a form of bushing modified as to the construction of internal thimble or sleeve; and Fig.

12 an elevation of a corrugated form of ring..

My bushing is particularly applicable to pulleys and the like and especially to those of the split type, and hence my bushing is here shown and described as made in halves adapted to fit or be inserted within the usual shaft bore or opening of a pulley whereby the l latter may be c amped to any sized shaft havin a diameter less than the shaft o ening.

i eferring to Figs. 1 to 5, the ha f bushingv therein illustrated comprises a halfV shell 1 centric to the shell.

forming the outer bearing surface of the bushing, an inner sleeve 2 forming the inner bearing surface, and a series of substantially `semi-circular rings 3, arranged and retained between such shell and sleeve in the manner hereinafter explained.

In order to hold or retain the rings in proper relative position, which is preferably at right angles to the aXis of rotation as shown, I employ in the present instance (Figs. 1 to 8), means coperating with both their inner and outer edges. To this end I cut or stamp a series of tongues 4, 5 and 6 from thebody of the outer shell 1 and bend them inwardly at-right angles to the shell. A single line lof the tongues 4 and 6 is provided while a double line of tongues 5, in staggered relation, is provided, with the result that the rings are interlocked as to their outer edges with the shell, the middle ring being held between the opposing tongues 5 against displacement longitudinally of the bushing, while the end rings as to their outer edges are held between their single line of tongues 4 and 6 respectively and inwardly directed end flanges 7 of the shell 1.

While a bushing composed of two halves `constructed according to the description thus far given, without the sleeve 2, might be em loyed to advantage with the inner edges of t e rings forming bearing surfaces by being in immediate contact with the shaft itself, and might be found quite satisfactory in practice, yet I prefer to use such sleeve 2, inasmuch as it constitutes means for supporting and steadying the inner edges of the rings, and also, if`desired, retaining means by being interlocked with the inner edges or ends of the rings. As herein shown, this sleeve 2 is a shell substantially semi-circular,

conforming to the contour or semicircle of the inner bearing edges of the rings, and con- The series of rings is saddled upon the sleeve which is provided with radial flanges 2a on which the ends of the rings or half rings 3 rest and which correspond thereto in width, all as clearly indicated in Fig. 1. Thus the sleeve itself is, in this particular instance, the part which fits directly upon the shaft.

The material of the shell is of somewhat greater length than required to form the substantially semi-circular shell itself and its extended longitudinal edges 8 are inturned or folded beneath the flanges of the sleeve 2 after suchsl'eeveand 'rings havebeen properly assembled within the shell in the manner hereinbefore described, withthe .result that the parts composing the lhalf bushing are securely retained in place so that such half bushing constitutes units which may be readily vand quickly handled and put in place or removed by the operator or user.

In addition to the anchorage of the rings at their outer edges, the rings may if desired or required 4be held or retained at their inner edges, ibut :such additional anchorage is fnot necessary, as the bushing constructed as already described represents an etlicient and serviceable structure. -In the present instance the means for retaining the inner edges lconsists of an interlocking connection comprising a series of :lugs or ears 31 ar ranged on the yinner corners of the h alf rings and projecting inwardly -in the manner illustrated in Fig. il. The sleeve 2 lis notched or recessed at intervalsfat 2b in order to receive suchears, with the result that the rings are iirmly saddled upon .the sleeve yand securely held in proper position.

When the inner edges ofthe rings are thus retained fand held, -as described, the flanges 2a of vthe sleeve become non-essential and may be vdispensed with, as indicated in Fig. 5 of the-drawing. Likewise the end lianges 7 of the shell 1 Lmay be omitted.

.InFigs 6, 7 and 8 I have shown a modiiied formi-of constructionas regards the means for holding Lor retaining the `outer and inner edges of the rings. In such modified form, which is also-shownof thesplit type of `bushing, `a thin shell -o'f sheet metal 9 is circumferentially expanded at desired intervals, forming -circumferential ribs 10 bearing against the .inner face -ol an ordinary hub thimble 11 and also `forming circumferential grooves =or channels on the inner face of the shell Ito receive the outer edges of a series of rings 212, here six in number, which vnumber may be variedas required or desired. These grooves hold the ringsagainst displacement from their proper relative position, which by preference is parallel `to each other and at right .angles tothe bushing axis or axis yof rotation of thesha'ft. To support the lower ends of the half rings, if desired, the longitudinal edges ofthe shell 9 are provided with a series of tongues or ears 13 corresponding tothe rings in position andadaptedto be inwardly folded lor rbent underneath the rings to thereby support lthem. By preference, the outer corners .of the ringsare notched at 1.4,.sulIiciently1to receive lthe tonOues or ears 13,.'soithatwhen1the latter are lfoIded, as described, a flush surface will 'be presented on l the lower edgeof the rings.

.In Figs. 9, 'rlOrarid 111 I have shown'amoditied form of bushing in which the inner edges only of the rings 'are retained or held. -Iieferring to Figs. 9 and 10, the rings 15 are l saddled upon an inner half sleeve or shell 1G, which is provided along its longitudinal edges with a series of notches arranged to receive inwardly directed ears 17. The rings .are sprung onto the shell 1G and securely` .retained thereon through the interlocking arrangement described. The construction shown in Fig. 11 involves somewhat of a reversal of the interlocking arrangement illustrated in Figs. 9 and 10, inasmuch as the rings 18 are provided at their inner corners with oblique slots l?) adapted to receive tongues 2O formed on the longitudinal edges of the inner sleeve 21, corresponding to the other sleeves described. In practice, these, edges are flanged outwardly and lmwardly corresponding to the inclination of the slots 19 and the same are also slit at intervals to 'l'orm tongues ol the same width as the rings` and corresponding thereto in location. The sleeve is then put in place with the tongues of the lianges inserted in the slots 19, after which those alternating portions 22 of the llanges between the rings are bent or folded down liat to the posit-ion indicated in lfig. l l, the tongues remaining in original position engaged by the slots 1Q.

My bushings are particularly applicable lo pulleys of the split type, and therefore my bushings have been illustrated and described as made in two halves, although they may be made as a single structure, in which form they lind useful application as bushings for loose pulleys.

As hereinbefore stated, the parts of the half bushings are substantially semi-circular in cross-section and in fact are less than a semi-circle, so that two cooperating halves will not come in contact when the pulley or the like is clamped to a shaft.

The bushing may be provided with any desired number of rings and may be of any desired or required length according to the width of thel pulley hub or according to other considerations. Furthermore, while llat rings are preferred, corrugated rings 23, as shown in ltig. l2, may be employed.

It will be understoml that various mechanical changes may be made in respect to the precise form and construction illustrated and described without departing from the spirit and scope of my invention and claims.

I claim:

1. A 'bushing comprising a series of rings, and means cooperating with the outer edges of said rings to maintain them in proper relative position 5 substantially as described.

2. A bushing comprising a series of rings, and means cooperating with the outer edges of such rings for both spacing and retaining them in their proper' relative position substantially as described.

3. A bushing comprising a series of rings, and means cooperating with both the outer and inner edges of said rings for retaining them in proper relative position; substantially as described.

4. A bushing comprising a series of rings, means coperating with the outer edges of such rings for spacing and retaining them, and means coperating with theV inner edges lof said rings for retaining or holding them as to such edges; substantially as described.

5. A bushing comprising a series of rings, and means coperating with the inner edges of such rings for retaining them and to thereby hold them in proper relative position; substantially as described.

6. A bushing comprising aseries of sheet metal rings arranged parallel to each other, and means coperating with the outer edges of such rings for holding them in proper rela tive position; substantially as described.

7. A bushing comprising a series of sheet metal rings arranged parallel to each other, and means coperating with the 'outer edges of such rings for holding them in proper rel'ative position, said rings being arranged at right angles to the bushing axis; substantially as described.

8. A bushing com rising a series of sheet metal rings arrange parallel to each other and at right angles to the bushing axis, and means coperating with the inner and outer edges of such rings for holding them in proper relative position; substantially as described.

9. A bushingcomprising a series of rings arran ed at an angle to the bushing axis, and a shel coniined within which .such rings are held; substantially as described.

10. A bushing comprising aseries of rings arranged at an angle to the bushing axis with their edges directed towards such axis, and a shell receiving said rings and having means for retaining themA in proper relative position; substantially as described.

11. A bushing comprising a series of rings arranged parallel to each other with their edges at substantially right angles to the bushing axis, and an outer shell receiving such rings and having means for retaining them in place; substantially as described.

12. A bushing comprising a series of rings arranged parallel to each other and at substantially right angles to the bushing axis,-

and an outer shell receiving such rings and having means for retaining them in place, such means consisting of a series of ears` in the interior of the shell against which such rings bear; substantially as described.

13. A bushing comprising a series of rings arranged parallel to each other and at sub; stantially right angles to the bushing axis, and an outer shell receiving such rings and having means for retaining them in place, such means consisting of a series of tongues or ears extending from the body of the shell and inwardly folded and against which such rings bear; substantially as described.

14. A bushing' comprising a series of rings arranged parallel to each other and at substantially right angles to the bushing axis, and an outer shell receiving such rings and having means for retaining them in place, suoli means consisting of a series of ears in the interior of the shell against which such rings bear, the ends of the shell being inwardly flanged against the outermost rings; substantially as described.

15. A bushing comprising a series of rings arranged parallel to each other and Vat substantially right'angles to the bushing axis, andan outer shell receiving such rings and having means for retaining them in place, the ends ofthe shell being inwardly flanged against the outermost rings; substantially as described. j

16. A bushing comprising a series of rings arranged parallel to each other and at an angle to the bushing axis, and means coperating with their inner edges for holding them in proper relative position; substantially as described.

17. A bushing comprlsmg a series of rings arranged at an angle to the bushing axis and means coperating with their inner edges for spacing them and holding them in proper relative position; substantially as described.

18. A bushing comprising a series of rings arranged at an angle to the bushing axis, and a sleeve having interlocking engagement with the rings; substantially as described.

19. A bushing comprising a series oi rings arranged at an angle to the bushing axis, and an inner sleeve on which the rings are saddled and which has interlocking engagement with the inner edges of the rings; substantiallyas described.

20. A bushing comprising a series of rings arranged at an angle tothe bushing axis and provided with ears or tongues, and an inner sleeve having recesses or notches to receive such ears; substantially as described.

21. A bushing comprising a series of flat sheet metal rings arranged arallel to each other and at right angles to t e bushing axis, and an inner sleeve having interlocking connection with the rings; substantially as described.

22. A split bushing, each half of which comprises a series of rings, and a substantially semi-circular shell receiving such rings and inturned as to its longitudinal edges to support the inner ends oi' such rings; substantially as described. Y

23. A split bushing, each half of whichl comprises a series of rings arranged parallel to eachother and atsubstantially right angles to the bushing axis, and a substantially semi-circular shell receiving such rings and having its longitudinal edges inwardly flanged to support the ends of such rings; substantially as described.

24. A split bushing, each half of which comprises a series of rings arranged parallel to each other and at substantially right angles to the bushing axis, and a substantiallgT semi-circular shell receiving such rings, and having its longitudinal edges inwardly flanged to support the ends el sneh rings, and having its ends inwardly ilanged against the outermost rings; substantially as described.

25. A. bushing comprising an outer shell, a sleeve, and a series oi rings arranged between such shell and sleeve and at rig it angles to the bushing axis; sulestantiallj,r as described 26. A bushing comprising an outer shell, a sleeve, and a series oi' rings arranged parallel to each other between such shell and sleeve and at right angles to the bushing;

A substantially as described.

27. A bushing comprising an outer shell, an inner sleeve, a series oll rings arranged between. such shell and sleeve, and means for retaining the rings in place substantiallgT as described.

2S. A bushing comprising an outer shell, an inner sleeve, and a series el' rings arranged between such shell and sleeve, said shell having means [or engaging and holding the outer edges of such disks substantiallyT as described.

29. A. bushing comprising an outer shell, an inner sleeve, and a series oi' rings arranged between such shell and sleeve, said shell having interlocking connection with the rings; substantially as described.

30. A bushing comprising an outer shell, an inner sleeve, and a series ol' rings arranged between such shell and sleeve, said sleeve having means for engaging and holding the sor/,ess

inner edges oiI such rings, substantially as described.

3l. A. bushing comprising an outer shell, an inner sleeve, and a series ol` rings arranged between such shell and sleeve, saidsleeve having interlocking connection with the rings, substantiallj,v as described.

32. A bushing cernprising` an outer shell, an inner sleeve, and a series et rings having interlocking connection with both the shell and sleeve, substantiallv as described.

A bushing comprising` an outer shell, an inner sleeve, conc vitric to the lshell, and a series ol' rings located between the shell and sleeve and arranged parallel to each other and at right angles to the lnishing axis; snbstantiallA described.

341i. A split bushing, cach halll ol' which comprises an outer shell substantially seniicireular in section and having its longitudinal edges inl'olded, a sleeve having llanejes resting upon such shell llanges, and a series ol` rings arranged between such shell and sleeve and at an angle to the bushing` axis; substantiallv as described.

35. A- split bushing, each halll olI which comprises an outer shell having its ends and longitudinal edges inwardlg,v ilanged, an inner sleeve concentric to such shell and having radial iianges resting upon the longitudinal 'flanges el' the shell, and a series ol' rings arranged between the shell and sleeve and at an angle to the bushing axis; substantiallj,T as described.

HENRY J. GlLllfllt'l ilitnesses H. Mean HAMMOND, ARNOLD BOUTELL.

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